CVE-2025-66402

{"id": "CVE-2025-66402", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-66402", "role": "CISA Coordinator", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2025-12-16T14:37:35.397337Z"}}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 3.6, "exploitabilityScore": 2.8}], "cvssMetricV40": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 7.1, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "HIGH", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "NONE", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED"}}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "misskey-dev", "product": "misskey", "versions": [{"status": "affected", "version": ">= 13.0.0-beta.16, < 2025.12.0"}]}]}], "published": "2025-12-16T00:16:02.207", "references": [{"url": "https://github.com/misskey-dev/misskey/commit/dc77d59f8712d3fe0b73cd4af2035133839cd57b", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/misskey-dev/misskey/security/advisories/GHSA-496g-mmpw-j9x3", "tags": ["Exploit", "Vendor Advisory"], "source": "security-advisories@github.com"}, {"url": "https://github.com/misskey-dev/misskey/security/advisories/GHSA-496g-mmpw-j9x3", "tags": ["Exploit", "Vendor Advisory"], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-862"}]}], "descriptions": [{"lang": "en", "value": "Misskey is an open source, federated social media platform. Starting in version 13.0.0-beta.16 and prior to version 2025.12.0, an actor who does not have permission to view favorites or clips can can export the posts and view the contents. Version 2025.12.0 fixes the issue."}, {"lang": "es", "value": "Misskey es una plataforma de redes sociales federada de c\u00f3digo abierto. A partir de la versi\u00f3n 13.0.0-beta.16 y antes de la versi\u00f3n 2025.12.0, un actor que no tiene permiso para ver favoritos o clips puede exportar las publicaciones y ver el contenido. La versi\u00f3n 2025.12.0 corrige el problema."}], "lastModified": "2026-10-14T13:10:00.187", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:misskey:misskey:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "1BA8B906-8DD2-4D82-90A7-AD955FEF15FC", "versionEndExcluding": "2025.12.0", "versionStartIncluding": "13.1.0"}, {"criteria": "cpe:2.3:a:misskey:misskey:13.0.0:-:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "786B1922-6E2E-48B5-8AA6-16566BDC39EF"}, {"criteria": "cpe:2.3:a:misskey:misskey:13.0.0:beta16:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "856F7093-6778-4449-A6B2-FADF0CC81BB8"}, {"criteria": "cpe:2.3:a:misskey:misskey:13.0.0:beta21:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4AEFFF0D-A3ED-41AF-B5F2-7E3E2CCB3E38"}, {"criteria": "cpe:2.3:a:misskey:misskey:13.0.0:beta22:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4615D7DB-9603-482D-8615-C09E8F41B204"}, {"criteria": 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